Handle



(N6 Model.) 1 Y I. PIERCE.

' HANDLE No. 534,003. Patented Feb. 12, 1895..

UNITED .STATEs "PATENT O FICE.

IsAAo PIERCE, OF WEST BAY CITY, MICHIGAN.

HANDLE.

SPECIFICATION forming part of Letters Patent No. 534,003, dated February12, 1895.

Application filed August 20, 1894- Serial No. 620,775- (No model.)

To a whom it may concern.-

Be it known that I, ISAAO'PIEROE, a citizen of the United States,residing at West Bay City, in the county of Bay and State of Michi gan,have invented a new and useful Improvement in Handles, of which thefollowing is a specification. I

This invention relates to that class of handles or hand wheels which areemployed more especially in connection with steam valves and whichconsist of a hub or head and a surrounding wire coil secured thereto.

My invention has for its object to connect the wire coil with thehandle-head in a strong and reliable mannerand at the same time reducethe area of the heat conducting surface between the head and the coil toa minimum, so as to insure a cool handle.

In the accompanying draw-ings:Figure 1 is a sectional elevation of myimproved handle, applied to a valve stem. Fig. 2 is a top plan View ofthe same with the hub shown in section. wire coil, showing the formthereof before its carrying arms or spokes are twisted and before itsends are united. Fig. 4 is a plan View of a modified construction of thehandle.

Like lettersof reference refer to like parts in the several figures.

A is a valve stem or rod and B is the hub or head of the handle securedto the valve stem and havinga number of equidistant radial bosses b.

C is the wire coil which surrounds the hub B and which is provided witha number of inwardly extending arms or spokes (1, whereby it isconnected with said hub. The hub has as many radial bosses as there arespokes, and the spokes are secured to these bosses, preferably bycasting the latter around the inner portions of the spokes in anysuitable or well known manner. The spokes may, however, be secured tothe'hub by any other suitable means, if desired.

The coil, with its arms, is preferably formed of a single piece of wire,and when thus con-' strueted, the same is formed at regular inter= valswith laterally extendingloops d and at its ends with laterally bentbranches 61 as shown in Fig. 3. The ends of the coil are united bytwisting its end branches d together; and the loops d are alsopreferably twisted, as shown in the drawings, to stifien the spokes.These twisted end branches thus Fig. 3 is a fragmentary view of the formone of the spokes, while the twisted loops from the remaining spokes.

If desired, the annular wire coil may be formed of segments or separatesections, as shown in Fig. 4. In this case each coil section is formedat its ends with inwardly bent arms or branches d and the branches ofadjacent sections are twisted together to form the spokes.

In my improved handle, the wire coil has no contact with its supportinghub or head, but is separated therefrom by an intervening air space,thus exposing the inner as well as the outer side of the coil to theair, and permitting a free radiation of heat from all sides of the coil.The cross-sectional area of the wire spokes is comparatively small, andas the conduction of heat can take place only through these spokes, verylittle heat is transmitted to the coil. This construction produces notonly a cool handle, but one which is at the same time light, strong anddurable.

I claim as my invention- 1. The combination with the handle head, of awire coil arranged around the head at a distance therefrom, and wirearms or spokes extending from the coil to the head through theintervening air space and connecting the coil with the head, whereby thecoil is supportedout of contact with the head and conduction of the heatto the coil, except through the wire spokes, is prevented, and a coolingair space is formed between the coil and the head, substantially as setforth.

2. The combination with a hub or head, of a wire coil surrounding thesame and formed with twisted arms or spokes extending inwardly therefromand secured at their inner portions to said hub or head, substantiallyas set forth.

3. The combination with a hub or head, of a surrounding wire coil formedat intervals with inwardly extending arms or spokes and at its ends withinwardly extending branches which aretwisted together to form a spoke,the several spokes being secured at their inner portions to said hub orhead, substantially as set forth.

Witness my hand this 13th day of August,

ISAAC PIERCE. Witnesses:

T. F. SHEPARD, GEO. L. MosHER.

